Hellow guys, Welcome to my website, and you are watching 【科学】6時間睡眠が続くとどうなる？【睡眠不足】. and this vIdeo is uploaded by からわかラボ at 2020-01-28T00:00:06-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.